<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>这是一个网页</title>
    <style>
        h2 {
            font-size: 20px;
            color: lightcoral;
            background-color: #ccc;
        }
    </style>
</head>

<body>
    <h1>坤坤-打球很厉害</h1>
    <h2>准备放暑假</h2>
</body>

</html>